EP1288986A1 - Betätigungsvorrichtung für elektrische Geräte ohne Gelenk - Google Patents

Betätigungsvorrichtung für elektrische Geräte ohne Gelenk Download PDF

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Publication number
EP1288986A1
EP1288986A1 EP02292136A EP02292136A EP1288986A1 EP 1288986 A1 EP1288986 A1 EP 1288986A1 EP 02292136 A EP02292136 A EP 02292136A EP 02292136 A EP02292136 A EP 02292136A EP 1288986 A1 EP1288986 A1 EP 1288986A1
Authority
EP
European Patent Office
Prior art keywords
branch
control device
contact
lateral
coach
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP02292136A
Other languages
English (en)
French (fr)
Inventor
Jean-Sébastien Guibert
Philippe Mondary
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Legrand SNC
Legrand France SA
Original Assignee
Legrand SA
Legrand SNC
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Legrand SA, Legrand SNC filed Critical Legrand SA
Publication of EP1288986A1 publication Critical patent/EP1288986A1/de
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H23/00—Tumbler or rocker switches, i.e. switches characterised by being operated by rocking an operating member in the form of a rocker button
    • H01H23/02—Details
    • H01H23/12—Movable parts; Contacts mounted thereon
    • H01H23/16—Driving mechanisms
    • H01H23/20—Driving mechanisms having snap action

Definitions

  • the present invention relates generally to devices for control of electrical equipment such as for example switches of the push or toggle type, switches and circuit breakers.
  • a control device comprising at least one fixed contact in electrical connection with a terminal outlet connection, and a conductive broom which has a middle branch by which it is in electrical connection with an input connection terminal and two lateral branches, at least one of which carries a movable contact and which are engaged with a trainer movable pivotally between two positions, namely a first position in which said lateral branch of the conductive brush applies said movable contact to the fixed contact and a second position in which said lateral branch of the conductive broom moves said movable contact away from said fixed contact.
  • Document FR 2 606 208 already discloses a control device comprising at least one fixed contact in electrical connection with a terminal outlet connection and a conductive brush which has a middle branch forming a movable yoke on which the end of a finger swivels coach, and two lateral branches, at least one of which carries a movable contact which closes in a loop on a fixed input contact forming a fixed yoke on which they are articulated in two opposite support points of it.
  • joints and in practice these are joints of knife type, by which the conductive broom is in contact with the contact input, must provide a double function of swivel mounting and transmission of electric current.
  • Such heating causes some degradation of the electrical performance of the control device, causing wear and oxidation of the support points in contact with the input contact and the brush conductor which can cause pollution and degradation of the grains of electrical contacts which constitute the mobile and fixed contacts.
  • the heating produced at the contact support points input and the conductive brush causes a some liquefaction, even vaporization and degradation of this fat which then disperses in the housing of the control device and can no longer play its role of facilitating the pivoting of the conductive broom on the input contact and absorber of electric micro-arcs.
  • the present invention provides a new device control device electric as defined in the introduction, characterized in that said branches lateral are parallel to each other in each of the two positions of the coach and are moved simultaneously by the latter between these two positions while being kept parallel.
  • FIG. 1 to 3 there is shown a control device 100 electrical equipment, here a back-and-forth, which includes an insulating box, formed by the assembly of two shells 101A, 101B, inside which is housed a control mechanism.
  • a back-and-forth which includes an insulating box, formed by the assembly of two shells 101A, 101B, inside which is housed a control mechanism.
  • the shells 101A, 101B are here joined to each other using screws not shown, but we can also plan to join these two hulls by snap-fastening or welding or any other means.
  • the shell 101A carries, on its inner face facing the shell 101B, chimneys 102, 103 each provided with a thread 102A, 103A and the other shell 101B includes, in its front wall, openings 102B, 103B which are positioned in correspondence with the threads 102A, 103A when this is placed on the first shell 101A (see figure 2).
  • the control mechanism comprises, at a distance from each other, two fixed contacts 111, 113 consisting of contact grains in electrical connection by means of rigid conductive strips 112, 114 with two terminals output connection not shown, for example connection terminals with screw of known type, for the electrical connection of electrical conductors from the power supply network.
  • a conductive brush 130 which comprises a branch middle 134 which is in electrical connection by means of a tongue rigid metal 134A which extends generally transversely to the said middle leg 134, with an input connection terminal not shown.
  • the conductive brush 130 has overall a U shape with two lateral branches 132, 133 which are connect to the middle branch 134 forming the bottom of the U.
  • the conductive brush 130 is secured to the shell 101A of the insulating housing of the control device 100, via its central branch 134 which is inserted between a platform 105 carried in console by the hull 101A and two feet 107 secured to two pillars also carried as a console by the shell 101A and positioned opposite said platform 105.
  • the lateral branches 132, 133 of the conductive brush 130 extend according to Divergent straight directions.
  • these lateral branches 132, 133 of the control device are engaged with a coach 140 which keeps them permanently in parallel to each other.
  • each lateral branch 132, 133 carries, at its free end, a movable contact 131 consisting of a contact grain projecting from the face of each branch lateral 132, 133 which is opposite the other lateral branch.
  • control device is a simple switch
  • it has a single fixed output contact, a simple insulating pad then substituting for the other fixed contact.
  • only one side branch of the conductive broom carrying a movable contact is used.
  • each lateral branch 132, 133 comprises, near its free end which carries the contact grain constituting the movable contact 131, a shoulder 132A, 133A engaged in a notch 145, 144 of the coach 140, so that said coach 140 acts on each lateral branch 132, 133 closest to the grain of contact she wears.
  • the coach 140 is advantageously pivotally displaceable at inside the insulating housing of the control device between two positions, at know a position for which a lateral branch 132 of the conductive brush 130 applies said movable contact 131 to said corresponding fixed contact 113 and a second position in which said lateral branch 132 of the brush conductor 130 discards said movable contact 131 from said fixed contact 113 corresponding.
  • the second position of the coach 140 corresponds to setting support by the other lateral branch 133 of the conductive brush 130 of the other contact mobile on the other corresponding fixed contact 111.
  • the coach 140 comprises a cylindrical body 142 pierced with an orifice through 142A intended to engage on a pin carried by the inner face shell 101A, this pin consisting of a stud 104 bearing on its surface cylindrical outer of the radial fins 104A.
  • the ends of the radial fins 104A bear on the surface internal cylindrical of said body 142.
  • the pad 104 extends along the axis X around which pivots the coach 140.
  • the external surface of the cylindrical body 142 of the coach 140 advantageously carries control means available to the user constituted here by a rocker button 141 also called a joystick or crankpin rocker that emerges outside the housing of the control device at through an opening defined between the two shells 101A, 101B.
  • a rocker button 141 also called a joystick or crankpin rocker that emerges outside the housing of the control device at through an opening defined between the two shells 101A, 101B.
  • said outer surface of the body 142 of the coach 140 wears a skirt 143 which extends over a sector angular and the free edge of which includes said spaced slots 144, 145 one from the other and intended to cooperate with the shoulders 133A, 132A of the conductive broom 130.
  • the coach 140 is formed in one piece by example by molding a rigid plastic material.
  • said lateral branches 132, 133 of the brush conductor 130 are parallel to each other in each of the two positions of the coach 140 corresponding to a support of one of the lateral branches on a fixed contact and are moved simultaneously by this last in a circular motion centered on the X axis between these two positions while being kept parallel.
  • Said lateral branches 132, 133 of the conductive brush 130 are therefore locally subject to a self-cleaning transverse movement during their separation at the opening of one of the fixed contacts 111, 113.
  • transverse movement is meant here a movement substantially perpendicular to the axis A1 or A2 of the fixed contact 111 or 113 concerned, each axis A1, A2 being generally defined by the direction in which the contact fixed consisting of a contact grain protrudes from the rigid conductive strip 112, 114 who wears it.
  • each lateral branch 132, 133 is connected to the middle leg 134 which is fixedly held in the housing of the device control by a knee-joint type.
  • each branch lateral 132, 133 is connected to the middle branch 134 of the conductive brush 130 by a bend 135 which extends at an angle to the center C, which, at rest, as as shown in Figure 1, is greater than 180 °, one of the wings of each elbow 135 being in continuity with said middle branch 134 while the other form, with said lateral branch 132, 133 concerned, a fold 136 whose concavity is turned opposite to that of elbow 135.
  • the fold 136 formed between a wing of the bend 135 concerned and the corresponding lateral branch 132, 133 is a dihedral D which is widely open.
  • the fold 136 formed between a elbow wing 135 and the corresponding side arm 132, 133 is another elbow wide open.
  • the fixed contacts 111, 113 and therefore at least part rigid conductive strips 112, 114 which carry them extend slightly oblique to the middle branch 134 of the conductive broom in converging towards each other in the opposite direction of this middle branch 134.
  • pivot axis X of the coach 140 and the contacts fixed 111, 113 are arranged at the three vertices of an isosceles triangle.
  • each elbow 135 and each fold 136 associated form, at the junction of each lateral branch 132, 133 with the middle leg 134, a spring 137 generally S-shaped.
  • control device 100 The operation of the control device 100 described above is the next.
  • the brush conductor 130 carries, by one of these lateral branches 132, 133, on one of the fixed contacts 111, 113, for example the one on the right, as shown in the Figure 3, and so it puts the input connection terminal in electrical connection with the corresponding output connection terminal, via the contact between the contact fixed and the corresponding mobile contact.
  • the S-shaped spring 137 formed at the junction of the other lateral branch 133 whose movable contact is spaced from the fixed contact 111 is slightly stretched, the corresponding 135 elbow being closed in a angle at center C 'greater than angle at center C at rest.
  • the two lateral branches 132, 133 undergo in this state a elastic bending stress so that one of the springs 137 is compressed and the other is tense.
  • the coach 140 pivots around the X axis and carries with it the branches lateral 132, 133 kept parallel to each other.
  • both of the lateral branches 132, 133 of the conductive brush 130 are first of all the object of an accentuation of their brace against coach 140 and this temporarily results in a accentuation of the winding of the elbows 135.
  • the lateral branch 133 initially separated from the fixed contact 111 comes then abruptly pressing on the latter after crossing the point death due to the release of energy from the initially compressed spring 137 which, after crossing neutral, tends to take the position taut equivalent to that which the other spring 137 had initially before the movement of the coach 140.
  • the spring 137 located at the junction of this lateral branch 132 and the middle branch 134 is compressed.
  • control device operates in reverse, that is to say back and forth.
  • each of the lateral branches 132, 133 of the conductive brush 130 is the object of a circular movement, which is deduced from that of the shoulder 132A, 133A by which it engages the coach 140, and which presents, vis-à-vis the fixed contact 111, 113, and more precisely vis-à-vis the grain of contact which constitutes it, a transverse component from which a self-cleaning of this contact grain as well as its own grain of contact.
  • the conductive brush 130 is preferably a single piece of bronze strap comes out of prestressed spring and is positioned under stress in the housing engaged with the coach 140 so as to provide good support between the fixed contacts and the mobile contacts each time tilting movement of the coach 140.
  • any other material can be used conductive spring effect for the conductive broom.

Landscapes

  • Massaging Devices (AREA)
  • Brushes (AREA)
  • Switches With Compound Operations (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
EP02292136A 2001-08-31 2002-08-29 Betätigungsvorrichtung für elektrische Geräte ohne Gelenk Withdrawn EP1288986A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0111331A FR2829284B1 (fr) 2001-08-31 2001-08-31 Dispositif de commande d'appareillages electriques sans chape
FR0111331 2001-08-31

Publications (1)

Publication Number Publication Date
EP1288986A1 true EP1288986A1 (de) 2003-03-05

Family

ID=8866876

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02292136A Withdrawn EP1288986A1 (de) 2001-08-31 2002-08-29 Betätigungsvorrichtung für elektrische Geräte ohne Gelenk

Country Status (4)

Country Link
EP (1) EP1288986A1 (de)
CN (1) CN100459004C (de)
FR (1) FR2829284B1 (de)
HU (1) HUP0202914A3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8826736B2 (en) 2009-04-28 2014-09-09 Maxim Integrated Products, Inc. Micromechanical sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809260A (en) * 1953-11-23 1957-10-08 Wesix Electric Heater Co Electric circuit controller
US2953656A (en) * 1958-07-17 1960-09-20 Pass & Seymour Inc A. c. rocker switch of four-way type
FR2606208A1 (fr) * 1986-10-29 1988-05-06 Legrand Sa Mecanisme d'interrupteur a balai conducteur a double pivot, et interrupteur comportant un tel mecanisme, notamment pour courant alternatif
FR2735609A1 (fr) * 1995-06-15 1996-12-20 Legrand Sa Mecanisme d'interrupteur

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2809260A (en) * 1953-11-23 1957-10-08 Wesix Electric Heater Co Electric circuit controller
US2953656A (en) * 1958-07-17 1960-09-20 Pass & Seymour Inc A. c. rocker switch of four-way type
FR2606208A1 (fr) * 1986-10-29 1988-05-06 Legrand Sa Mecanisme d'interrupteur a balai conducteur a double pivot, et interrupteur comportant un tel mecanisme, notamment pour courant alternatif
EP0268518A1 (de) * 1986-10-29 1988-05-25 Legrand Schaltmechanismus mit leitendem Schieber mit doppeltem Drehpunkt und Schalter mit einem solchem Mechanismus, insbesondere für Wechselstrom
FR2735609A1 (fr) * 1995-06-15 1996-12-20 Legrand Sa Mecanisme d'interrupteur

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8826736B2 (en) 2009-04-28 2014-09-09 Maxim Integrated Products, Inc. Micromechanical sensor
US9778038B2 (en) 2009-04-28 2017-10-03 Hanking Electronics, Ltd. Micromechanical sensor

Also Published As

Publication number Publication date
HU0202914D0 (de) 2002-10-28
CN100459004C (zh) 2009-02-04
CN1407574A (zh) 2003-04-02
FR2829284B1 (fr) 2004-10-01
FR2829284A1 (fr) 2003-03-07
HUP0202914A2 (en) 2003-05-28
HUP0202914A3 (en) 2003-08-28

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